CUPERTINO, Calif. -- A worker trapped in a flaming vehicle near the Lehigh Hanson cement facility in Cupertino died at the scene Saturday morning, according to fire officials.

Firefighters were dispatched to the facility in the area of the 24000 block of Stevens Creek Boulevard around 9:34 a.m. on the report of a vehicle on fire, according to fire officials.

As they sped to the fire, more information came in that a person might be trapped inside. When they arrived, the firefighters confirmed that a person was trapped, fire officials said.

Santa Clara County Sheriff's officials said the person who was trapped in the car was a worker at the facility, and that CAL-OSHA was immediately notified.

Sheriff says the fatality was to a worker at the site. Cal-OSHA was immediately notified. Santa Clara Co. Fire reports the fire was quickly extinguished but unfortunately the occupant of the vehicle was pronounced dead at the scene. Call came in around 9:30 a.m. pic.twitter.com/bs45HFbOdv

The firefighters quickly extinguished the flames, but despite their efforts, the person trapped in the car died at the scene, according to fire officials.

The cause of the fire is under investigation, fire officials said. The Santa Clara County Sheriff's Office and the California Highway Patrol assisted the Santa Clara County Fire Department in responding to the blaze.